Mo. Rev. Stat. § 41.320
Current with changes from the 2023 Legislative Session
In addition to retirement as provided in section 41.310, an officer may be separated from the service by reason of death, resignation, discharge for inefficiency, discharge for physical disqualification, absence without leave, dismissal by sentence of a general court-martial or withdrawal of federal recognition.
§ 41.320, RSMo
RSMo 1939 § 15031, A.L. 1951 p. 654 § 51